首页 | 本学科首页   官方微博 | 高级检索  
   检索      


The 33 kDa protein of photosystem II is a low-affinity calcium- and lanthanide-binding protein
Authors:Kruk Jerzy  Burda Kvetoslava  Jemioła-Rzemińska Małgorzata  Strzałka Kazimierz
Institution:Department of Plant Physiology and Biochemistry, Faculty of Biotechnology, Jagiellonian University, ul. Gronostajowa 7, 30-387 Kraków, Poland. jkruk@mol.uj.edu.pl
Abstract:We have shown that the isolated 33 kDa protein of photosystem II contains one calcium and one lanthanide low-affinity binding site with binding constants (K(D)) on the order of 10(-5) M. Binding of calcium or lanthanides to this site induces conformational changes in the protein that manifest in fluorescence emission spectra of the protein, circular dichroism spectra, and calorimetric thermograms where the phase transitions are shifted to lower temperatures. The role of calcium binding to the 33 kDa protein in the attainment of its native structure and the significance of this interaction for the oxygen evolution process are discussed.
Keywords:
本文献已被 PubMed 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号